Model # 787264

Internet #100549260

Store SKU #787264

Thermasheath Rmax Thermasheath-3 1 in. x 4 ft. x 8 ft. R-6 Polyisocyanurate Rigid Foam Insulation Board
0719968750017

Thermasheath

Rmax Thermasheath-3 1 in. x 4 ft. x 8 ft. R-6 Polyisocyanurate Rigid Foam Insulation Board

  • Polyiso foam bonded to reinforced aluminum foil facers
  • Cost effective way to increase a thermal efficiency and R-values
  • ENERGY STAR approved
$1947 /each
store icon Loading Buying Options...
package icon Loading Buying Options...
Sorry, but we ran into issues loading these options. Please try refreshing.

Frequently Bought Together

Installation Options

Product Overview

  • Polyiso foam bonded to reinforced aluminum foil facers
  • Cost effective way to increase a thermal efficiency and R-values
  • ENERGY STAR approved
R-Matte Plus-3/Thermasheath-3 is rigid foam plastic thermal insulation board composed of environmentally sound, closed cell, polyisocyanurate foam bonded to a durable white-matte (non-glare) aluminum facer and a reflective reinforced aluminum facer. This product is suitable for use in wall sheathing applications in new residential, commercial and agricultural buildings and for thermal retrofit construction to existing buildings. This ENERGY STAR qualified R-Matte Plus-3/Thermasheath-3 provides R6 with dimensions of 1 in. x 4 ft. x 8 ft. This product is designed for exterior and interior, non-structural uses.
  • Rmax polyiso sheathing offers the GREATEST R-value per inch currently available in a rigid foam board
  • R-Matte plus-3/Thermasheath-3 is applied to the exterior or interior face of wood or metal studs to cover all studs, sills, plates and header constructions, thereby providing insulation over areas not normally covered by insulation products
  • Superior resistance to moisture and vapor in above grade applications
  • Polyiso rigid foam board offers superior fire protection properties compared to any other rigid foam board insulation
  • ENERGY STAR qualified to meet or exceed federal guidelines for energy efficiency for year-round energy and money savings
  • When taped and flashed, the Rmax polyiso board greatly reduces air infiltration and prevents thermal bridging caused by heat and cold transmission through studs
  • Lightweight and easily cut to size
  • Note: Product may vary by store
  • How much do you need? Let our calculator help:
    Insulation calculator button

Product Overview

  • Polyiso foam bonded to reinforced aluminum foil facers
  • Cost effective way to increase a thermal efficiency and R-values
  • ENERGY STAR approved
Model #: 787264
Sku #: 787264
Internet #: 100549260

R-Matte Plus-3/Thermasheath-3 is rigid foam plastic thermal insulation board composed of environmentally sound, closed cell, polyisocyanurate foam bonded to a durable white-matte (non-glare) aluminum facer and a reflective reinforced aluminum facer. This product is suitable for use in wall sheathing applications in new residential, commercial and agricultural buildings and for thermal retrofit construction to existing buildings. This ENERGY STAR qualified R-Matte Plus-3/Thermasheath-3 provides R6 with dimensions of 1 in. x 4 ft. x 8 ft. This product is designed for exterior and interior, non-structural uses.

  • Rmax polyiso sheathing offers the GREATEST R-value per inch currently available in a rigid foam board
  • R-Matte plus-3/Thermasheath-3 is applied to the exterior or interior face of wood or metal studs to cover all studs, sills, plates and header constructions, thereby providing insulation over areas not normally covered by insulation products
  • Superior resistance to moisture and vapor in above grade applications
  • Polyiso rigid foam board offers superior fire protection properties compared to any other rigid foam board insulation
  • ENERGY STAR qualified to meet or exceed federal guidelines for energy efficiency for year-round energy and money savings
  • When taped and flashed, the Rmax polyiso board greatly reduces air infiltration and prevents thermal bridging caused by heat and cold transmission through studs
  • Lightweight and easily cut to size
  • Note: Product may vary by store
  • How much do you need? Let our calculator help:
    Insulation calculator button

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Customers Also Compared These

Price
$15.48 /each
$33.92 /each
$24.00 /each
Name 1 in. x 4 ft. x 8 ft. R-3.85 Insulating Sheathing FOAMULAR 250 2 in. x 48 in. x 8 ft. R-10 Scored Squared Edge Insulation Sheathing Foamular 150 1-1/2 in. x 4 ft. x 8 ft. R-7.5 Scored Squared Edge Insulation Sheathing
Brand R-Tech Owens Corning Owens Corning
Ratings (35) (51) (31)
Sheathing Type EPS XPS XPS
Product Width (in.) 48 48 48
Product Length (ft.) 8 ft 8 ft 8 ft
Insulation R-Value 3.85 10 7.5
Faced or Unfaced Faced Unfaced Unfaced
Insulation Application Type 2x4 Walls,2x6 Walls,Attics,Basements,Crawlspaces,Exterior Sheathing,Exterior Wall Foundation,Garage,Under Slab Exterior Sheathing,Exterior Wall Foundation,Under Slab Exterior Wall Foundation
Product Thickness (in.) 1 in 2 in 1.5 in
View Product View Product View Product

Specifications

Dimensions

Product Depth (in.)
1
Product Height (in.)
96
Product Length (ft.)
8 ft
Product Thickness (in.)
1 in
Product Width (in.)
48

Details

Faced or Unfaced
Faced
Insulation Application Type
2x4 Walls,2x6 Walls,Ceilings,Exterior Sheathing,Garage
Insulation R-Value
6
Insulation Type
Sheathing
Interior/Exterior
Exterior
Product Weight (lb.)
7lb
Sheathing Type
ISO
Structural
No

Warranty / Certifications

Warranty Information
Standard Warranty

Specifications

Dimensions

Product Depth (in.)
1
Product Height (in.)
96
Product Length (ft.)
8 ft
Product Thickness (in.)
1 in
Product Width (in.)
48

Details

Faced or Unfaced
Faced
Insulation Application Type
2x4 Walls,2x6 Walls,Ceilings,Exterior Sheathing,Garage
Insulation R-Value
6
Insulation Type
Sheathing
Interior/Exterior
Exterior
Product Weight (lb.)
7lb
Sheathing Type
ISO
Structural
No

Warranty / Certifications

Warranty Information
Standard Warranty

Questions & Answers

Does R-Max need to be covered by 1/2" sheetrock when installed on basement walls?

Asked by: Randy
wiscobadger17 appears to be wrong. I read the specs provided by the manufacturer and they emphatically warn you NOT to leave it exposed.
Answered by: Buzz
Date published: 2018-05-07

Can this be doubled and create a better r value I have a metal building I wish to insulate but d...

Can this be doubled and create a better r value I have a metal building I wish to insulate but do not wan to use rolls/batts or blow in I do not think the R value of this is enough for the shed
Asked by: Betty
I’m sure it could be , we used it on our sliding door on pole barn , we used the 2” insulated board on the walls and ceiling , it is easy to work with and put up , we noticed a difference immediately, after putting up one corner . Really like this product!!
Answered by: Customer
Date published: 2018-01-06

Can this be used to insulate between the floor joist underneath my wood frame home? I just purch...

Can this be used to insulate between the floor joist underneath my wood frame home? I just purchased it. It was built in 1954, wood floors and I just removed the hideous carpet in it. Now my electric bill is through the roof.......please help!
Asked by: JC
i would not use this product for your job. conventional insulation would be better and provide a much higher R value. This R-Max product is a real good choice but not for in between joists,. don't forget paper to the heated side of application.
Answered by: HOLMESWANABE
Date published: 2018-04-28

I've seen on-line where this is used to build an air tight "box" around can/recessed lights in th...

I've seen on-line where this is used to build an air tight "box" around can/recessed lights in the attic. Box is sealed with fire resistant foam. Is this an acceptable use for it?
Asked by: Geno
Acceptable use? Certainly. So long as the foam isn't right against the can lights own dome and doesn't pinch any wiring. It us UL Fire rated and while I would just use the appropriate tape to seal the edges. Fire resistant foam should be fine. Just don't fill the box with the foam.
Answered by: Nick
Date published: 2018-01-05
  • y_2018, m_5, d_19, h_21CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.8
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_55
  • loc_, sid_100549260, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=BEST_ANSWER_FEEDBACK_COUNT, direction=DESCENDING), SortEntry(order=POSITIVE_ANSWER_FEEDBACK_COUNT, direction=DESCENDING), SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_homedepot
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 101ms
  • QUESTIONS, PRODUCT

Customer Reviews

Rmax Thermasheath-3 1 in. x 4 ft. x 8 ft. R-6 Polyisocyanurate Rigid Foam Insulation Board is rated 4.6 out of 5 by 18.
Rated 5 out of 5 by from I used Rmax in three thicknesses to insulate my concrete basement walls. It was easy to handle a... I used Rmax in three thicknesses to insulate my concrete basement walls. It was easy to handle and cut and had the highest R value of any rigid foam.
Date published: 2017-12-28
Rated 5 out of 5 by from Worked great in our tent to help insulate... Worked great in our tent to help insulate
Date published: 2017-11-28
Rated 5 out of 5 by from Fantastic product, easy to handle and work with. Purchased to block out the Arizona sun and heat... Fantastic product, easy to handle and work with. Purchased to block out the Arizona sun and heat on a window opening. I cut to size of the window opening, then took one side of the board, let my daughter take spare cloth and make it look like a curtain then glue it onto the board. Then fit the one inch thick board underneath my blinds tension fitting it into the window space. Inside has a closed blind and no light or heat comes thru, and the outside looks like a closed window curtain. Have since purchased more of this fantastic board insulation, planning to totally insulate my tough shed this weekend, and my laundry room. If you are using this product in the southwest against heat, use the one inch board, as this is the best for severe heat and the minimum thickness for total blockage. Works just as well against cold.
Date published: 2018-04-25
Rated 2 out of 5 by from The product was ok, but the $5+ per linear foot rebate offered was a scam. The actual rebate is... The product was ok, but the $5+ per linear foot rebate offered was a scam. The actual rebate is only 20 cents per square foot, but had to add over R19 additional insulation value to qualify and this product only added R6.
Date published: 2018-05-15
Rated 5 out of 5 by from Use it in my windows to block out light and... Use it in my windows to block out light and heat and it works very well. Also love that it's easy to work with cutting material is simple and leaves very little mess
Date published: 2018-04-23
Rated 5 out of 5 by from I am using this to insulate a camper. It held... I am using this to insulate a camper. It held its stiffness and cut easily. Will have to wait to see how much of an impact it had on the temperature transfer
Date published: 2018-04-17
Rated 5 out of 5 by from Product was very easy to cut and trim to fit.... Product was very easy to cut and trim to fit. Very resilient for flexing in and around obstacles.
Date published: 2018-03-27
Rated 5 out of 5 by from Very durable material to work with. It easy to add... Very durable material to work with. It easy to add fit in spaces you need insulation
Date published: 2018-02-14
  • y_2018, m_5, d_19, h_21
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.8
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_18
  • loc_, sid_100549260, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_homedepot
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 105ms
  • REVIEWS, PRODUCT